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Calculate distances from the epicenter to stations

Calculate distances from the epicenter to stations

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Calculate distances from the epicenter to stations A, B, and C in Fig. 8.45 in Text using Table 8.2
er 8 Structural Deformation of the Earth's Crust and Earthquakes Station C Station B Seismogram for station A 25 Curves show how 20 travel times of P and S waves increase with distance 15 10- Travel time of P wave from earthquake to station C 2000 4000 6000 8000 10,000 Distance from earthquake (km) A FIGURE 8.45 Variation of the S-P time interval with distance from the epicenter. As the distance from the epicenter increases from seismograph station X, to Xc, the S-P time interval increases. Source: From F. Press and R. Siever, Earth, 3rd ed., © 1982 by W. H. Freeman and Co., San Francisco. Time after start of earthquake (min} Surface waves |interval
Transcribed Image Text:er 8 Structural Deformation of the Earth's Crust and Earthquakes Station C Station B Seismogram for station A 25 Curves show how 20 travel times of P and S waves increase with distance 15 10- Travel time of P wave from earthquake to station C 2000 4000 6000 8000 10,000 Distance from earthquake (km) A FIGURE 8.45 Variation of the S-P time interval with distance from the epicenter. As the distance from the epicenter increases from seismograph station X, to Xc, the S-P time interval increases. Source: From F. Press and R. Siever, Earth, 3rd ed., © 1982 by W. H. Freeman and Co., San Francisco. Time after start of earthquake (min} Surface waves |interval
Table 8.2 Travel Time and Time Interval for Arrival of Seismic Waves Distance Time (S-P) km 500 - -50 sec 40 Interval 300- 30 between P 200 - 20 Travel Time and S (S-P) 100 - -10 Distance from 75- 8. source, km min min min S 506 -4 2,000 4,000 6,000 8,000 10,000 11,000 4 06 7 25 3 19 6. 58 12 36 38 25- 20-2 10- 5- 9. 21 16 56 7 35 11 23 20 45 9. 22 12 57 23 56 10 59 13 39 25 18 11 39 Source: From S. Judson, M. E. Kauffman, and L. D. Leet, Physical Geology, 7th ed., © 1987 by Prentice Hall, Inc., Englewood Cliffs, N.J.
Transcribed Image Text:Table 8.2 Travel Time and Time Interval for Arrival of Seismic Waves Distance Time (S-P) km 500 - -50 sec 40 Interval 300- 30 between P 200 - 20 Travel Time and S (S-P) 100 - -10 Distance from 75- 8. source, km min min min S 506 -4 2,000 4,000 6,000 8,000 10,000 11,000 4 06 7 25 3 19 6. 58 12 36 38 25- 20-2 10- 5- 9. 21 16 56 7 35 11 23 20 45 9. 22 12 57 23 56 10 59 13 39 25 18 11 39 Source: From S. Judson, M. E. Kauffman, and L. D. Leet, Physical Geology, 7th ed., © 1987 by Prentice Hall, Inc., Englewood Cliffs, N.J.
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